Electric sealer



R. D. SORVER.

ELECTRIC SEALER.

APPLICATION FILED SEPT. 19.1918.

' 1,333,458. Patented Mar. 9, 1920.

v UNITED STATES/{PATENT OFFICE. 1 .v

ROBERT D. SORVER, OF PASADENA, CALIFORNIA.

ELECTRIC SEALER.-

To all whom it may concern:

Be it known that I, ROBERT D. SORVER, a

' citizen of the United States, residing at ture.

Other and further objects appear in the following description wherein the invention isset forth in detail.

As shown and described, a specific embodiment is adhered to but to this embodiment the invention. is not to be restricted. vThe right is reserved to make such changes or alterations as the actual reduction to practice may suggest, in so far as such changes or alterations are compatible in spirit with the annexed claim.

In the accompanying drawings: Figure 1 is a perspective view of the improved sealer.

Fig. 2 is :a central longitudinal sectional view through the same.

As shown, the'invention comprises a tubular member 1 made preferably of metal, being internally threaded at one end to permit the attachment of a screw 2 which is formed with a knurled or milled head 3. At the end remote from the screw plug 2, the tubular member 1 is surrounded by a heating element in the form of a resistance coil or heating coil 4, the latter being wound preferably upon a mica or asbestos insulation 5 interposed between it and the tube and being covered by a similar insulation 6.

Surrounding the coil there is a tubular casing 7 having one end formed w1th a nipple 8 of smaller diameter than the diameter of the tubular member 1, the end of the said tubular member abutting the end of the cas-- ing 7 adjacent the nipple. and being secured to the same in any acceptable way. Suitable insulation 9 is interposed between one endconvolution of the heating coil 4 and the end of the tubular casing 7 That end of the tubular casing remote ing of approved Specification of Letters Patent. Patented Mar. 9; 1920. Application flied September 19, 1918. Serial No. 254,816.

from the nipple is internally threaded and I there is engaged with thesethreads the reduced threaded end 10 of a handle element 11, the latter being preferably of some heat insulating material and snugly surrounding the tubular member 1 from the'point where the tubular casing 7 terminates to that end where thescrew plug 2 is attached.

The heating coil 4 has its terminals connected w1th the. conductors 12 carried by the twin electric conductor 13, the latter beconstruction for this character of work.

In order that the conductors 12 may be connected with the heating coil, a recess 14 is formed in the handle element-11 into which the twin conductor 13 is led, so that 1ts individual conductors 12 may be con nected with the coil terminals, as above recited.

The nipple 8 of the casing 7 is externally threaded for the reception of a cap 15, the latter being designed to engage the nipple whenthe device is not in use and to be removed when it is desired to use the device. An externally threaded plug 16 is formed on the tubular member 1 and projects laterally therefrom, providing a suitable means for receiving the cap 15 when the same is detached fro-m'the nipple.

In the use of the device a stick of sealing wax 17 is inserted in the tube 1 after the plug 2 has been detached. The latter is then attached, when a spring 18, which is inserted behind the sealing wax 17 and bears upon the latter when the plug 2 is attached, forces the stick of sealing wax toward that endof the tubular member adj acentthe nipple 8. The twin conductor 13 is then attached to the source of electrical supply,"

whereupon the coil 4 becomes heated and reduces the sealing wax in the adjacent end of the tube to a molten state. The cap 15. being removed, the wax is .then forced out through the nipple 8 by the action of the spring 18,when the wax may be used for sealing in any manner desired.-

From the foregoing descri tion and the accompanying drawings, it is elieved that a clear enough understanding of the invention is to be had to render further description unnecessary.

The invention having been described what is claimed as new and useful is:

An article of the kind set forth comprising a tubular member, a heating coil surion ' tu u ar casing, the handle member being;

rounding the tubular member adjacent one end but Insulated therefrom, a. casmg inclosing the heating coil and secured at one end to one end at the tubular member, the easing bei n formed with 'a nipple axially aimed wit the tubular member, a removable cap attached to the nipple, the tubular casing being internall} th readed at the end remote" closely surrounding the tubular member and en a with the, internal threads of the in the mpple, a handle *member formed nith a recess so thet. electric con-' gagi the tu lular member in that end re.- mote rom that connectedwith the casing,

and a. spring within the tubular member and designed to bear upon a stick'of sealing wax inserted in the before it.

In testimony whereof I aflix my signature.

ROBERT D. SORVER. L

said tubularmember 20 

